Timesheets, approvals and reports for Jira Cloud. Nothing to connect to.
Punchcard runs entirely on Atlassian's own infrastructure. There is no Punchcard server. If Jira is up, Punchcard is up. Your worklogs stay in Jira, where they already live, so nothing is copied out and nothing is lost if you stop using it. Punchcard keeps only submission status and your settings, inside Atlassian, in your site's data residency region.
No analytics, no tracking, no data leaving your site.
Free for sites with up to 10 users. $1.25 per user per month above that, billed by Atlassian on your Jira invoice. 30-day free trial.